/* ===== Portfolio Page Specific Styles ===== */

/* Portfolio Header */
.portfolio-header {
    padding-top: calc(7rem + var(--spacing-xl));
    padding-bottom: var(--spacing-xl);
    text-align: center;
    background-color: var(--color-gray-light);
}

.portfolio-title {
    font-size: clamp(4rem, 6vw, 6rem);
    margin-bottom: 6rem;
}

.portfolio-subtitle {
    font-size: 1.8rem;
    font-weight: 300;
    color: var(--color-gray-dark);
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-lg);
    margin-top: 3rem;
}

/* Filter Buttons */
.filter-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
    margin-top: var(--spacing-xl);
}

.filter-btn {
    padding: 0.8rem 2.4rem;
    background-color: transparent;
    border: none;
    color: var(--color-gray-dark);
    font-size: 1.4rem;
    font-weight: 400;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    text-transform: uppercase;
}

.filter-btn::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background-color: var(--color-black);
    transition: width var(--transition-fast);
}

.filter-btn:hover {
    color: var(--color-black);
}

.filter-btn:hover::after {
    width: 100%;
}

.filter-btn.active {
    color: var(--color-black);
    font-weight: 500;
}

.filter-btn.active::after {
    width: 100%;
}

@media (max-width: 768px) {
    .filter-buttons {
        gap: var(--spacing-md);
        margin-top: var(--spacing-lg);
    }
    
    .filter-btn {
        font-size: 1.2rem;
        padding: 0.8rem 1.6rem;
    }
}

/* Portfolio Grid */
.portfolio-grid-section {
    padding: var(--spacing-xl) 0;
    min-height: 60vh;
    position: relative;
}

/* Background image container */
.portfolio-grid-section::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: var(--bg-image);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0;
    transition: opacity var(--transition-slow);
    z-index: -1;
    pointer-events: none;
}

.portfolio-grid-section.show-bg::before {
    opacity: 0.7;
}

/* Make portfolio section background transparent on hover */
.portfolio-grid-section.show-bg {
    background-color: transparent;
}

/* Make portfolio header transparent when showing background */
.portfolio-header.show-bg {
    background-color: transparent;
    transition: background-color var(--transition-medium);
}

.portfolio-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xl);
    max-width: 140rem;
    margin: 0 auto;
    justify-content: center;
}

/* Responsive Grid Adjustments */
@media (min-width: 769px) and (max-width: 1200px) {
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1201px) {
    .portfolio-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.portfolio-item {
    position: relative;
    overflow: hidden;
    background-color: var(--color-black);
    opacity: 1;
    transform: translateY(0);
    transition: all var(--transition-medium);
    width: 100%;
    max-width: 45rem;
}

.portfolio-item:hover {
    transform: translateY(-0.5rem);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.portfolio-link {
    display: block;
    position: relative;
    height: 0;
    padding-bottom: 125%; /* 4:5 aspect ratio */
}

.portfolio-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, transparent 0%, rgba(0, 0, 0, 0.8) 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: var(--spacing-lg);
    color: var(--color-white);
    opacity: 0;
    transition: opacity var(--transition-medium);
}

.portfolio-item:hover .portfolio-image img {
    transform: scale(1.05);
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-overlay h2 {
    font-size: 2.4rem;
    margin-bottom: var(--spacing-xs);
    font-weight: 400;
}

.portfolio-overlay p {
    font-size: 1.4rem;
    font-weight: 300;
    margin-bottom: var(--spacing-sm);
    opacity: 0.9;
}

.view-more {
    font-size: 1.2rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    opacity: 0.8;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.view-more::after {
    content: '→';
    transition: transform var(--transition-fast);
}

.portfolio-item:hover .view-more::after {
    transform: translateX(0.5rem);
}

/* Project Modal */
.project-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.95);
    z-index: 2000;
    overflow-y: auto;
}

.project-modal.active {
    display: block;
}

.modal-content {
    position: relative;
    background-color: var(--color-white);
    margin: 2% auto;
    padding: 0;
    width: 95%;
    max-width: 160rem;
    animation: modalFadeIn 0.3s ease;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: translateY(-5rem);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-close {
    position: fixed;
    top: var(--spacing-md);
    right: var(--spacing-md);
    font-size: 4rem;
    font-weight: 300;
    line-height: 1;
    color: var(--color-white);
    background-color: rgba(0, 0, 0, 0.5);
    width: 5rem;
    height: 5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background-color: var(--color-black);
    transform: rotate(90deg);
}

.modal-body {
    padding: var(--spacing-xl);
}

/* Project Detail */
.project-detail h2 {
    font-size: clamp(2.8rem, 4vw, 4rem);
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg) var(--spacing-md) 0;
    text-align: center;
    font-weight: 400;
}

.project-info {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.project-description {
    max-width: 80rem;
    margin: 0 auto var(--spacing-xl);
    padding: var(--spacing-lg);
    text-align: center;
    font-size: 1.8rem;
    line-height: 1.8;
    color: var(--color-gray-dark);
    display: flex;
    align-items: center;
    min-height: 20rem;
}

.project-gallery {
    margin-bottom: var(--spacing-xl);
}

.gallery-section {
    font-size: 2.8rem;
    font-weight: 500;
    margin: calc(var(--spacing-xl) * 1.5) 0 var(--spacing-lg);
    padding: var(--spacing-sm) var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--color-black);
    text-align: center;
    position: relative;
}

.gallery-section::after {
    content: '';
    display: block;
    width: 8rem;
    height: 2px;
    background-color: var(--color-black);
    margin: var(--spacing-sm) auto 0;
}

.gallery-section:first-child {
    margin-top: var(--spacing-md);
}

.gallery-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    justify-content: center;
}

.gallery-grid img,
.gallery-grid video {
    width: auto;
    max-width: 45rem;
    height: 45rem;
    object-fit: cover;
    cursor: pointer;
    transition: transform var(--transition-fast);
    background-color: var(--color-gray-light);
    flex: 0 1 45rem;
}

.gallery-grid video {
    background-color: var(--color-black);
}

/* Wide videos span 2 columns */
.gallery-video-wide {
    flex: 0 1 calc(90rem + var(--spacing-md)) !important;
    max-width: calc(90rem + var(--spacing-md)) !important;
}

.gallery-grid img:hover,
.gallery-grid video:hover {
    transform: scale(1.02);
}

/* Large desktop screens */
@media (min-width: 1400px) {
    .portfolio-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: calc(var(--spacing-xl) * 1.5);
    }
    
    .gallery-grid {
        gap: var(--spacing-lg);
    }
    
    .gallery-grid img,
    .gallery-grid video {
        height: 50rem;
        max-width: 50rem;
        flex: 0 1 50rem;
    }
    
    .gallery-video-wide {
        flex: 0 1 calc(100rem + var(--spacing-lg)) !important;
        max-width: calc(100rem + var(--spacing-lg)) !important;
    }
}

/* Responsive gallery images */
@media (max-width: 1024px) {
    .gallery-grid img,
    .gallery-grid video {
        height: 35rem;
        max-width: 35rem;
        flex: 0 1 35rem;
    }
    
    .gallery-video-wide {
        flex: 0 1 calc(70rem + var(--spacing-md)) !important;
        max-width: calc(70rem + var(--spacing-md)) !important;
    }
}

.project-credits {
    background-color: var(--color-gray-light);
    padding: var(--spacing-lg);
    border-left: 3px solid var(--color-black);
    max-width: 60rem;
    margin: 0 auto;
}

.project-credits p {
    margin-bottom: var(--spacing-sm);
    font-size: 1.4rem;
    line-height: 1.6;
}

.project-credits p:last-child {
    margin-bottom: 0;
}

.project-credits strong {
    color: var(--color-black);
}

/* Dynamic Loading States */
.loading-text,
.no-images-text {
    text-align: center;
    padding: 3rem;
    color: var(--color-gray-dark);
    font-style: italic;
}

.loading-text {
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.6;
    }
    50% {
        opacity: 1;
    }
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.95);
    z-index: 3000;
    cursor: zoom-out;
}

.lightbox.active {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.lightbox-image {
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
}

.lightbox-close {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    font-size: 4rem;
    color: var(--color-white);
    cursor: pointer;
    background-color: rgba(0, 0, 0, 0.5);
    width: 5rem;
    height: 5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.lightbox-close:hover {
    background-color: var(--color-black);
    transform: rotate(90deg);
}

/* Responsive Design */
@media (max-width: 768px) {
    /* Remove glassmorphism from navbar on mobile */
    .navbar {
        background-color: var(--color-white) !important;
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
    }
    
    /* Adjust background image position to avoid navbar overlap */
    .portfolio-grid-section::before {
        top: 7rem; /* Push background down below navbar */
    }
    
    .portfolio-header {
        padding-top: calc(6rem + var(--spacing-lg));
        padding-bottom: var(--spacing-lg);
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        padding: 0 var(--spacing-sm);
    }
    
    .portfolio-link {
        padding-bottom: 125%; /* Maintain 4:5 aspect ratio on mobile */
    }
    
    .portfolio-overlay {
        opacity: 1;
        background: linear-gradient(to bottom, transparent 50%, rgba(0, 0, 0, 0.9) 100%);
        padding: var(--spacing-md);
    }
    
    .portfolio-overlay h2 {
        font-size: 2rem;
    }
    
    .portfolio-overlay p {
        font-size: 1.2rem;
    }
    
    .view-more {
        font-size: 1rem;
    }
    
    .modal-content {
        width: 100%;
        margin: 0;
        min-height: 100vh;
    }
    
    .modal-body {
        padding: var(--spacing-md);
    }
    
    .project-detail h2 {
        padding: var(--spacing-md) var(--spacing-sm) 0;
        margin-bottom: var(--spacing-lg);
    }
    
    .project-description {
        padding: var(--spacing-md);
        margin-bottom: var(--spacing-lg);
        min-height: 15rem;
    }
    
    .gallery-grid {
        gap: var(--spacing-md);
        margin-bottom: var(--spacing-xl);
    }
    
    .gallery-grid img,
    .gallery-grid video {
        width: 100%;
        max-width: 100%;
        height: auto;
        max-height: 70vh;
        object-fit: contain;
        background-color: var(--color-gray-light);
        margin-bottom: var(--spacing-sm);
        flex: 1 1 100%;
    }
    
    /* Wide videos take full width on mobile */
    .gallery-video-wide {
        flex: 1 1 100% !important;
        max-width: 100% !important;
    }
    
    .project-description {
        font-size: 1.6rem;
    }
    
    .modal-close {
        position: fixed;
        background-color: var(--color-black);
    }
}

@media (max-width: 480px) {
    .portfolio-title {
        font-size: 3.2rem;
    }
    
    .portfolio-subtitle {
        font-size: 1.4rem;
    }
    
    .portfolio-grid {
        gap: var(--spacing-sm);
        padding: 0 var(--spacing-xs);
    }
    
    .portfolio-item {
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    }
    
    .portfolio-overlay h2 {
        font-size: 1.8rem;
    }
    
    .portfolio-overlay p {
        font-size: 1.1rem;
    }
    
    .modal-body {
        padding: var(--spacing-md) var(--spacing-sm);
    }
    
    .project-detail h2 {
        font-size: 2.4rem;
        margin-bottom: var(--spacing-lg);
        padding: var(--spacing-lg) var(--spacing-xs) var(--spacing-sm);
    }
    
    .project-description {
        font-size: 1.4rem;
        padding: var(--spacing-md);
        margin-bottom: var(--spacing-lg);
        min-height: 12rem;
    }
    
    .gallery-grid {
        gap: var(--spacing-md);
        padding: 0 var(--spacing-xs);
    }
    
    .gallery-grid img,
    .gallery-grid video {
        height: auto;
        max-height: 60vh;
        object-fit: contain;
        margin-bottom: var(--spacing-md);
        border-radius: 0.4rem;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    }
    
    .gallery-section {
        font-size: 2.2rem;
        margin: var(--spacing-lg) 0 var(--spacing-md);
        padding-top: var(--spacing-md);
        border-top: 1px solid var(--color-gray-medium);
        text-align: center;
    }
    
    .gallery-section:first-child {
        border-top: none;
        padding-top: 0;
    }
    
    .project-credits {
        padding: var(--spacing-md);
        margin: 0 var(--spacing-sm);
    }
    
    .project-credits p {
        font-size: 1.2rem;
    }
    
    .modal-close {
        width: 4rem;
        height: 4rem;
        font-size: 3rem;
        top: var(--spacing-sm);
        right: var(--spacing-sm);
    }
}